Nah.

He was full of sho!te!

Wizeb reminds me of a story from Uni invoving a complete anaimal of a lad from Hull called Mark who lived in the same flat in halls as one of my mates. They had an ongoing friendly bit of one-upmanship with some lads in another flat whereby each flat would sneak in to the others knowing they were in the hall bar and nick their booze or sabotage something ( e.g. bedding soaked in water, placed in a bin bag and then in a chest freezer). During one of these raids Mark curled one off into a casserole dish and put it in the oven at 180C. The now carbonised turd was only found the following evening when someone went to put a pie in the oven!